Hey Just to report I did my first dose of stability on Tuesday morning, second dose this morning and when I got back from work today I notice a huge difference in the fishes behavour. Swimming alot alot more active but 3 of the aulonacara seem to still be very still and less active as the rest . I can't wait for tomorrow so I can put more of this stuff in! Just a fantastic product. Love it thank you for your advice!! Ammonia 0.25 Nitrite 0 Nitrate 15